First images of Nikon D600 with 24 MP FX sensor

Mark F wrote:

[ultrawide zoom - read superzoom]

Many of the issues caused by the tradeoffs made in making an ultrawide
zoom can be handled by post processing. In particular, dust
mostly cane be removed

I haven't yet seen a fixed length superzoom. Hence air (with dust)
has to enter the lens on every extension.

And unless the rear of the lens is hermetically sealed, that
dust will end up in the camera.

by processing by chromatic distortion
can be greatly reduced

At a further loss of resolution and quality.

and spatial distortion can be just able
completely eliminated.

At a further loss of resolution and field of view.

Hence ultrawide zooms and rare changing
of lenses.

A dustproof camera-lens-flash system is even better.
Superzooms aren't.

The main drawbacks of ultrawide zooms are weight gain, F-stop
increase. (Size and price will also be a factor for many.)

- non-functional lens hood
- low glare resistance (many elements)
- lower MTF (less sharp and less distinct pictures)
- rotating lens hood (not even tulip shapes are possible)
- rotating filterholder
- mechanical stability (low)
- no dust or weather sealing
- deeper DOF than necessary

Bigger sensor allows for tradeoff of pixels for noise reduction.

Faster lenses allows not to need to make that tradeoff.

-Wolfgang